Mon, 28 Feb 2011 13:42:24 -0800
7022711: compiler crash in try-with-resources
Reviewed-by: mcimadamore
1 /*
2 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
24 /*
25 * @test
26 * @bug 4813736
27 * @summary Additional functionality test of task and JSR 269
28 * @author Peter von der Ah\u00e9
29 * @library ./lib
30 * @run main TestJavacTaskScanner TestJavacTaskScanner.java
31 */
33 import com.sun.tools.javac.api.JavacTaskImpl;
34 import com.sun.tools.javac.parser.*;
35 import com.sun.tools.javac.util.*;
36 import java.io.*;
37 import java.net.*;
38 import java.nio.*;
39 import java.nio.charset.Charset;
40 import java.util.Arrays;
41 import javax.lang.model.element.Element;
42 import javax.lang.model.element.TypeElement;
43 import javax.lang.model.type.DeclaredType;
44 import javax.lang.model.type.TypeMirror;
45 import javax.lang.model.util.Elements;
46 import javax.lang.model.util.Types;
47 import javax.tools.*;
49 import static javax.tools.StandardLocation.CLASS_PATH;
50 import static javax.tools.StandardLocation.SOURCE_PATH;
51 import static javax.tools.StandardLocation.CLASS_OUTPUT;
53 public class TestJavacTaskScanner extends ToolTester {
55 final JavacTaskImpl task;
56 final Elements elements;
57 final Types types;
59 int numTokens;
60 int numParseTypeElements;
61 int numAllMembers;
63 TestJavacTaskScanner(File file) {
64 final Iterable<? extends JavaFileObject> compilationUnits =
65 fm.getJavaFileObjects(new File[] {file});
66 StandardJavaFileManager fm = getLocalFileManager(tool, null, null);
67 task = (JavacTaskImpl)tool.getTask(null, fm, null, null, null, compilationUnits);
68 task.getContext().put(ScannerFactory.scannerFactoryKey,
69 new MyScanner.Factory(task.getContext(), this));
70 elements = task.getElements();
71 types = task.getTypes();
72 }
74 public void run() {
75 Iterable<? extends TypeElement> toplevels;
76 try {
77 toplevels = task.enter(task.parse());
78 } catch (IOException ex) {
79 throw new AssertionError(ex);
80 }
81 for (TypeElement clazz : toplevels) {
82 System.out.format("Testing %s:%n%n", clazz.getSimpleName());
83 testParseType(clazz);
84 testGetAllMembers(clazz);
85 System.out.println();
86 System.out.println();
87 System.out.println();
88 }
90 System.out.println("#tokens: " + numTokens);
91 System.out.println("#parseTypeElements: " + numParseTypeElements);
92 System.out.println("#allMembers: " + numAllMembers);
94 check(numTokens, "#Tokens", 1222);
95 check(numParseTypeElements, "#parseTypeElements", 136);
96 check(numAllMembers, "#allMembers", 67);
97 }
99 void check(int value, String name, int expected) {
100 // allow some slop in the comparison to allow for minor edits in the
101 // test and in the platform
102 if (value < expected * 9 / 10)
103 throw new Error(name + " lower than expected; expected " + expected + "; found: " + value);
104 if (value > expected * 11 / 10)
105 throw new Error(name + " higher than expected; expected " + expected + "; found: " + value);
106 }
108 void testParseType(TypeElement clazz) {
109 DeclaredType type = (DeclaredType)task.parseType("List<String>", clazz);
110 for (Element member : elements.getAllMembers((TypeElement)type.asElement())) {
111 TypeMirror mt = types.asMemberOf(type, member);
112 System.out.format("%s : %s -> %s%n", member.getSimpleName(), member.asType(), mt);
113 numParseTypeElements++;
114 }
115 }
117 public static void main(String... args) throws IOException {
118 String srcdir = System.getProperty("test.src");
119 new TestJavacTaskScanner(new File(srcdir, args[0])).run();
120 }
122 private void testGetAllMembers(TypeElement clazz) {
123 for (Element member : elements.getAllMembers(clazz)) {
124 System.out.format("%s : %s%n", member.getSimpleName(), member.asType());
125 numAllMembers++;
126 }
127 }
129 /* Similar to ToolTester.getFileManager, except that this version also ensures
130 * javac classes will be available on the classpath. The javac classes are assumed
131 * to be on the classpath used to run this test (this is true when using jtreg).
132 * The classes are found by obtaining the URL for a sample javac class, using
133 * getClassLoader().getResource(), and then deconstructing the URL to find the
134 * underlying directory or jar file to place on the classpath.
135 */
136 public StandardJavaFileManager getLocalFileManager(JavaCompiler tool,
137 DiagnosticListener<JavaFileObject> dl,
138 Charset encoding) {
139 File javac_classes;
140 try {
141 final String javacMainClass = "com/sun/tools/javac/Main.class";
142 URL url = getClass().getClassLoader().getResource(javacMainClass);
143 if (url == null)
144 throw new Error("can't locate javac classes");
145 URI uri = url.toURI();
146 String scheme = uri.getScheme();
147 String ssp = uri.getSchemeSpecificPart();
148 if (scheme.equals("jar")) {
149 javac_classes = new File(new URI(ssp.substring(0, ssp.indexOf("!/"))));
150 } else if (scheme.equals("file")) {
151 javac_classes = new File(ssp.substring(0, ssp.indexOf(javacMainClass)));
152 } else
153 throw new Error("unknown URL: " + url);
154 } catch (URISyntaxException e) {
155 throw new Error(e);
156 }
157 System.err.println("javac_classes: " + javac_classes);
159 StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, encoding);
160 try {
161 fm.setLocation(SOURCE_PATH, Arrays.asList(test_src));
162 fm.setLocation(CLASS_PATH, Arrays.asList(test_classes, javac_classes));
163 fm.setLocation(CLASS_OUTPUT, Arrays.asList(test_classes));
164 } catch (IOException e) {
165 throw new AssertionError(e);
166 }
167 return fm;
168 }
169 }
171 class MyScanner extends Scanner {
173 public static class Factory extends ScannerFactory {
174 public Factory(Context context, TestJavacTaskScanner test) {
175 super(context);
176 this.test = test;
177 }
179 @Override
180 public Scanner newScanner(CharSequence input, boolean keepDocComments) {
181 assert !keepDocComments;
182 if (input instanceof CharBuffer) {
183 return new MyScanner(this, (CharBuffer)input, test);
184 } else {
185 char[] array = input.toString().toCharArray();
186 return newScanner(array, array.length, keepDocComments);
187 }
188 }
190 @Override
191 public Scanner newScanner(char[] input, int inputLength, boolean keepDocComments) {
192 assert !keepDocComments;
193 return new MyScanner(this, input, inputLength, test);
194 }
196 private TestJavacTaskScanner test;
197 }
198 protected MyScanner(ScannerFactory fac, CharBuffer buffer, TestJavacTaskScanner test) {
199 super(fac, buffer);
200 this.test = test;
201 }
202 protected MyScanner(ScannerFactory fac, char[] input, int inputLength, TestJavacTaskScanner test) {
203 super(fac, input, inputLength);
204 this.test = test;
205 }
207 public void nextToken() {
208 super.nextToken();
209 System.err.format("Saw token %s (%s)%n", token(), name());
210 test.numTokens++;
211 }
213 private TestJavacTaskScanner test;
215 }